ASoC: msm: Avoid duplicate adsp core svc registration for dolby

We use adsp core services present in sound/soc/msm/qdsp6v2
for 8974 based targets. Use the same core service even
for dolby security mechanisms instead of registering another
CORE service with adsp.

Change-Id: If2138e9e6ae25c877fe9039622b16bbd8fa34e54
CRs-fixed: 474729
Signed-off-by: Phani Kumar Uppalapati <phaniu@codeaurora.org>